Question

A drive-through at C&A Fast Food serves 300 customers over a 10-hour day. On average, a customer spends 2 minutes waiting in line, 3 minutes placing the order, and 5 minutes completing the order before leaving the drive-through. How many customers on average are "in" the drive-through (i.e., from the time they enter to the time they exit the drive-through) on a typical day?

Answer 1

5 customers

Step-by-step explanation:

Given;

Rate at which C&A Fast Food serves = 300 customers over a 10-hour day

Now,

1 hour = 60 minutes

therefore,

10 hours = 600 minutes

thus,

Rate =
`\frac{\textup{300}}{\textup{600}}`

or

rate = 0.5 customers per minute

also,

Total time in the drive through

= waiting time in line + time in ordering + time of completing order

= 2 + 3 + 5

= 10 minutes

Therefore,

The average number of customers in drive through = Rate × Time

= 0.5 × 10 = 5 customers